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Description

AdaptiveGRC is vulnerable to Stored XSS via text type fields across the forms. Authenticated attacker can replace the value of the text field in the HTTP POST request. Improper parameter validation by the server results in arbitrary JavaScript execution in the victim's browser. Critically, this may allow the attacker to obtain the administrator authentication token and perform arbitrary actions with administrative privileges, which could lead to further compromise. This issue occurs in versions released before December 2025.

PUBLISHED Reserved 2026-03-17 | Published 2026-04-24 | Updated 2026-04-24 | Assigner CERT-PL




LOW: 2.4CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Product status

Default status
unaffected

5.420.00 (custom) before 5.420.66
affected

5.420.00 (custom) before 5.444.119
affected

5.420.00 (custom) before 5.448.116
affected

5.420.00 (custom) before 5.453.110
affected

5.420.00 (custom) before 5.454.64
affected

5.420.00 (custom) before 5.455.87
affected

5.420.00 (custom) before 5.456.60
affected

5.420.00 (custom) before 5.499.113
affected

Default status
unaffected

5.420.00 (custom) before 5.420.14
affected

5.420.00 (custom) before 5.423.7
affected

5.420.00 (custom) before 5.444.20
affected

5.420.00 (custom) before 5.448.42
affected

5.420.00 (custom) before 5.449.40
affected

5.420.00 (custom) before 5.453.19
affected

5.420.00 (custom) before 5.454.17
affected

5.420.00 (custom) before 5.456.20
affected

Credits

Antoni Kwietniewski (mBank) finder

References

cert.pl/posts/2026/04/CVE-2026-4313 third-party-advisory

adaptivegrc.com/pl/wszystkie-procesy-grc-w-jednym-narzedziu/ product

cve.org (CVE-2026-4313)

nvd.nist.gov (CVE-2026-4313)

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